We look at the division of 37535 by 18 
The aim is to understand the frequency of 18 in 37535.

Let's proceed to step 1:
18 can be fit into 3 0 times, resulting in a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Include the next digit (7) from the dividend after 3, then repeat: 37 / 18

Going ahead to step 2:
18 goes into 37 2 times with a remainder of 1.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Subtract 36 from 37 to get 1.
Grab the next digit (5) from the dividend, add it to 1, then carry on: 15 / 18

Step 3:
18 goes into 15 0 times with a remainder of 15.
Put 0 as the next digit of the answer. 
Result so far: 20.0
Subtract 0 from 15 to get 15.
Bring next digit (3) of the dividend behind the 15 and repeat the process: 153 / 18

Step 4:
If we divide 153 by 18, we get 8 and a remainder of 9.
Put 8 as the next digit of the answer. 
Result so far: 208.0
If we take 144 away from 153, we end up with 9.
Append the next digit (5) from the dividend to 9 and continue with: 95 / 18

Step 5:
95 divided by 18 is 5 with a remainder of 5.
Record the quotient 5 as the next digit in the result. 
Result so far: 2085.0
Subtract 90 from 95 to get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Moving on to step 6:
The number 18 fits into 50 2 times, leaving a remainder of 14.
Use 2 as the next digit of our solution. 
Result so far: 2085.2
Deduct 36 from 50 and we're left with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Going ahead to step 7:
The number 18 fits into 140 7 times, leaving a remainder of 14.
The number 7 becomes the next digit in our result. 
Result so far: 2085.27
If we take 126 away from 140, we end up with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Let's proceed to step 8:
The number 18 fits into 140 7 times, leaving a remainder of 14.
Write down 7 as next digit of the result. 
Result so far: 2085.277
Subtract 126 from 140 to get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

After the division, we end up with 2085.277 and a remainder of 0.0014.